Finishing machine



Aug.. 18,' l 925. l ,550,02 7

. J. HUG

FINISHING MACHINE Filed Dec. 272 1921 3 Sheets-Sheet '2 Aug. 15, 1925.

C. J. HUG

FINISHING MACHINE Filed Dec. 22, 1921 3 Sheets-Sheet 3 Patented FAug. 18, 1925.

l UNITED STATES PATENT OFFICE.

CHRISTIAN J'. HUG, OF HIGHLAND, ILLINOIS, ASSIGNOR TO THE HUG'y COMPANY, OF

- HIGHLAND, ILLINOIS, A CORPORATION OF ILLINOIS.

FINISHING MACHINE.

Application 1ed December 22, 1921. Serialv No. 524,109.

T all whvm t 'may concern.'

Be it known that I, CHRISTIAN J. HUG, a citizen of the United States, residing at Highland, in the county of Madison and State of Illinois, have" invented certain new and useful Improvements in Finishing Machines, of which the Jfollowing is a specification, reference being had therein to the` accompanying drawing.

My invention relates to improvements in finishing machines for roadways of concrete or the like, and has for its objects to provide a traveling mechanism which embraces the several operations of scraping and smoothing or trowelling the road surface by horizontally reciprocated flexible blades, of rolling or tamping the scraped surface transversely of the path of the machine, and trowelling the rolled Vsurface to produce a final finish by means of a reciprocating finishing member. A

The traveling mechanism is adapted to be supported by and travel upon the kerb or edge-form between which the road founda- 4 .25 ,-ion and superstructure has been deposited.

Theembodied mechanism is so constructed that either, any two, or all lof the operations above outlined may be performed while the machine, which is self-propelled, is moving 3 forwardly or backwardly or is at rest.

Other results incident to the operation 4and use of the machine of my invention will lbe disclosedby the appended description.

Drawings.

Fig. 1 is a front elevation of.a machine embodying my invention, the strike-off board being removed except as to afragment thereof. V

Fig. 2 is a top plan view of the same.

Fig. 3 is a side elevation of the same.

Fig. 4 is an enlarged view partly in section of the -roller-mounting employed therein.

Fig. 5 is an enlarged detail of the chainmounting of said roller, taken in section on the line 5-5 of Fig. 4.

Fig. 6 is an end-view of the tampmg member employed in my machine.

Fig. 7 is an enlarged sectional view of the track supporting tamping-members.

Fig. 8 is a diagrammatic view illustrating the arrangement of the driving mechanism.`

'gear 24 and the disc 25.

yThe gear-wheel 26 meshes with and is driven by the worm 24, and rotates the shaft 27 (on which said gear wheel 26 is fixed) on which the traction-wheels 11 are mounted.

The disc 25 actuates the rod 28 to reciprocate the strike-off board 29.

As shown in Fig. 3 the strike-off board 29 has on its outer face a flexible strike-off the chain carrying the blade 30, made adjustable vertically, and relmovably attached to the board 29 by bolts 31. On its opposite face the strike-off board 29 has the trowelling blade 32, which is flexible, and whose lower face rests u on the surface of the pavement being Worke The strike-oli' board 29 is thrown into or out of operative position by the hand-lever 33 and connecting-rod 34. The strike-off board 29, thus mounted and equipped, serves to even off the pavement surface by the strike-off blade 30, and to trowel that surface by the blade 32.

The jack-shaft 14 )has fixed upon it the sprocket 40, driving through the chain 41, the sprocket 42 on the shaft 43. Shaft' 43 is equipped with the sprockets 44.--44 whereby chains 45-445i are driven, the chains 45-45 being aligned by the sprockets 46-46.

The rolling or tamping members 47 are carried by the chains 45-45, whereon they are mounted by the means illustrated in Figs. 4 and 5, the axle 48 passing through the member 47 and having its terminals swivelled in the bearing blocks 49 (see Fig. 4), the block 49 having flexible engagement at the points 50 and 5l (see Fig. 5) with the chain 45. rlhe block 49 has the integral hub 52 whereon the wheel 53 is mounted, and the wheel 53 is arranged to'ride alternately on the upper track 54 and the lower track 55, the relative positions of the tracks 54 and 55 being illustrated in Fig.` 3, and their adjustable mounting, by means of bolts 56, and slots 57 in the vertical members of the frame 10, are shown in Fig. 7.

I have found it advantageous to have the member 47 formed as shown in Fig. 6, a series of ribs 58 being arranged as shown, to impact with their outer faces successively on the surface being worked.

The shaft 14 carries the disc 59 driving the rod 60 (see Fig. 2) to reciprocate the frame 61. That frame 6l has rather loosely suspended from its terminal arms 62 a float or strip of loosely hung flexible material 63 arranged to sag in contact with the street surface (said surface being indicated as 64 in Fig. 3) tothe end that, being moved to and fro with the movement of the entire machine, the path of the machine by the horizontal movement of the frame 61, its contact with the street surface 64 will have a scouring or trowelling action thereon.

The bevel-gear 22 is mounted onthe shaft 70, and its movement, and direction of movement, is controlled by the hand-lever 71operating the reversible driving gear comprising the yoke 7 2, cones 73-7 3 slidably mounted on the engine shaft 74, and alter nately having frictional engagement with the bevel-faced wheel 75 on the shaft 70.

Mode of operation The rolling or tamping members 47 are set, as shown in Fig. 2, at an angle with relation to their'path of travel, vin order to Work or tamp the street surface with a razor-like movement. The machine operates in either direction along the street or and reciprocated transversely to road, and its operations are (when driven with the strike-off board 429 in front) as` follows:

The strike-ofi" member 30 performs the usual function of striking-olf inequalities or projectionsv of the surface being worked.

Next, the trowelling blade 32 exerts its scouring or trowelling effect upon the surface.

Next, the rolling or tamping elements 47 travel across that surface transversely to pack or tamp the material of the pavement.

Finally, the float 63 trowels the rolled surface.

When the movement of the machine is reversed, the float 63 may be thrown out of contact with the road surface 64 by pulling up the terminals 62 (the frame 6l is hingedly mounted at-the points 80) and engaging one of said terminals 62 with the hook 8l. But the float 63 and other operative parts will perform their respective functions regardless of the direction of movement of the machine, the sequence of the several operations being immaterial.

Ulaz'ms.

1. In a finishing machine the combination of a frame arranged to travel on kerbs;` a reciprocating strike-off board adjustably mounted at the forward end of said frame; and a series of tamping elements arranged to travel transversely in one direction across the path of the machine.

2. A finishing machine comprising a frame; a strike-0E board adjustably mounted at the front of said frame; a flexible strike-off' blade secured to said strike-off board; a flexible trowelling blade mounted on the rear face of said strike-off board;

.and a series. of tamping elements operatively mounted on said frame behind said strikeofl'l board to travel across the path of travel ofthe finishing machine.

In testimony whereof I hereunto aix my signature.

' .CHRISTIAN J. HUG. 

